“Some circumstantial evidence is very strong, as when you find a trout in the milk.”
Henry David Thoreau

Evidence of vote fraud is very much like that. Those who engage in it are slick and do all they can to hide it, so the evidence is often quite circumstantial.

In fact, often the circumstantial evidence is all the evidence we have, such was finding tens of thousands of bogus votes in the ballot box, we didn’t see someone actually put them there, but they are found, they are there, and they are clearly evidence of vote fraud. Such is true of the voting divisions where Obama gets 100 percent of the votes cast.